1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/* $OpenBSD: sprayd.c,v 1.9 2004/06/02 02:21:15 brad Exp $*/
/*
* Copyright (c) 1994 Christos Zoulas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christos Zoulas.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef lint
static char rcsid[] = "$OpenBSD: sprayd.c,v 1.9 2004/06/02 02:21:15 brad Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <syslog.h>
#include <rpc/rpc.h>
#include <rpcsvc/spray.h>
static void spray_service(struct svc_req *, SVCXPRT *);
static int from_inetd = 1;
#define TIMEOUT 120
static void
cleanup(int signo)
{
(void) pmap_unset(SPRAYPROG, SPRAYVERS); /* XXX signal race */
_exit(0);
}
static void
die(int signo)
{
_exit(0);
}
int
main(int argc, char *argv[])
{
SVCXPRT *transp;
int sock = 0;
int proto = 0;
struct sockaddr_storage from;
socklen_t fromlen;
/*
* See if inetd started us
*/
fromlen = sizeof(from);
if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
from_inetd = 0;
sock = RPC_ANYSOCK;
proto = IPPROTO_UDP;
}
if (!from_inetd) {
daemon(0, 0);
(void) pmap_unset(SPRAYPROG, SPRAYVERS);
(void) signal(SIGINT, cleanup);
(void) signal(SIGTERM, cleanup);
(void) signal(SIGHUP, cleanup);
} else {
(void) signal(SIGALRM, die);
alarm(TIMEOUT);
}
openlog("rpc.sprayd", LOG_CONS|LOG_PID, LOG_DAEMON);
transp = svcudp_create(sock);
if (transp == NULL) {
syslog(LOG_ERR, "cannot create udp service.");
return 1;
}
if (!svc_register(transp, SPRAYPROG, SPRAYVERS, spray_service, proto)) {
syslog(LOG_ERR,
"unable to register (SPRAYPROG, SPRAYVERS, %s).",
proto ? "udp" : "(inetd)");
return 1;
}
svc_run();
syslog(LOG_ERR, "svc_run returned");
return 1;
}
static void
spray_service(struct svc_req *rqstp, SVCXPRT *transp)
{
static struct timeval clear, get;
static spraycumul scum;
switch (rqstp->rq_proc) {
case SPRAYPROC_CLEAR:
scum.counter = 0;
(void) gettimeofday(&clear, 0);
/*FALLTHROUGH*/
case NULLPROC:
(void)svc_sendreply(transp, xdr_void, (char *)NULL);
return;
case SPRAYPROC_SPRAY:
scum.counter++;
return;
case SPRAYPROC_GET:
(void) gettimeofday(&get, 0);
timersub(&get, &clear, &get);
scum.clock.sec = get.tv_sec;
scum.clock.usec = get.tv_usec;
break;
default:
svcerr_noproc(transp);
return;
}
if (!svc_sendreply(transp, xdr_spraycumul, (caddr_t)&scum)) {
svcerr_systemerr(transp);
syslog(LOG_ERR, "bad svc_sendreply");
}
}
|
